8 p.m., CBSJulia Louis-Dreyfus) gets jealous because Richard (Clark Gregg) and New Christine (Emily Rutherfurd) are having a baby, so she asks Richard to have one with her, too. Tim Meadows guest-stars.
8 p.m., FOXMark Valley) takes on the case of Allyson (Kristin Lehman), an attorney who's being targeted by the mafia. If only Chance had been around in the days of Tony Soprano...
9 p.m., ABCEd O'Neill) takes Gloria (Sofia Vergara) to see a Valentine's Day comedy show, featuring guest-star David Brenner as himself.
9 p.m., NGC
Inside Polygamy: Life in BountifulLove Big Love? Try the non-fiction version. This special program takes a rare peek into Winston Blackmore's fundamentalist Mormon compound in Bountiful, Utah.
10 p.m., CBSDanica Patrick—is behind the murder.
Also on the airwaves...
Charlie Brown Valentine, 8 p.m., ABC
Mercy, 8 p.m., NBC
The Middle, 8:30 p.m., ABC
Gary Unmarried, 8:30 p.m., CBS
Criminal Minds, 9 p.m., CBS
American Idol, 9 p.m., FOX
Man Vs. Wild, 9 p.m., DSC
Cougar Town, 9:30 p.m., ABC
Ugly Betty, 10 p.m., ABC
Shear Genius, 10 p.m., BRAVO
Nip/Tuck, 10 p.m., FX
NCAA Men's Basketball: Connecticut v. Syracuse, Florida State v. Clemson, Virginia v. Maryland, Duke v. North Carolina, Baylor v. Nebraska, Virginia Tech v. North Carolina State, Nevada v. Idaho
What are you watching tonight?
Follow TV.com writer Stefanie Lee on Twitter: @StefAtTVDotCom